1 /*-
2 * Copyright (c) 2020-2021 The FreeBSD Foundation
3 *
4 * This software was developed by Björn Zeeb under sponsorship from
5 * the FreeBSD Foundation.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD$
29 */
30
31 #ifndef _LINUXKPI_LINUX_IEEE80211_H
32 #define _LINUXKPI_LINUX_IEEE80211_H
33
34 #include <sys/types.h>
35 #include <net80211/ieee80211.h>
36
37 #include <asm/unaligned.h>
38 #include <linux/bitops.h>
39 #include <linux/if_ether.h>
40
41
42 /* 9.4.2.55 Management MIC element (CMAC-256, GMAC-128, and GMAC-256). */
43 struct ieee80211_mmie_16 {
44 uint8_t element_id;
45 uint8_t length;
46 uint16_t key_id;
47 uint8_t ipn[6];
48 uint8_t mic[16];
49 };
50
51 #define IEEE80211_CCMP_HDR_LEN 8 /* 802.11i .. net80211 comment */
52 #define IEEE80211_CCMP_PN_LEN 6
53 #define IEEE80211_CCMP_MIC_LEN 8 /* || 16 */
54 #define IEEE80211_CCMP_256_HDR_LEN 8
55 #define IEEE80211_CCMP_256_MIC_LEN 16
56 #define IEEE80211_GCMP_HDR_LEN 8
57 #define IEEE80211_GCMP_MIC_LEN 16
58 #define IEEE80211_GCMP_PN_LEN 6
59 #define IEEE80211_GMAC_PN_LEN 6
60
61 #define IEEE80211_MAX_PN_LEN 16
62
63 #define IEEE80211_INVAL_HW_QUEUE ((uint8_t)-1)
64
65 #define IEEE80211_MAX_AMPDU_BUF_HT 0x40
66 #define IEEE80211_MAX_AMPDU_BUF 256 /* for HE? */
67 #define IEEE80211_MAX_AMPDU_BUF_HE 256
68
69 #define IEEE80211_MAX_FRAME_LEN 2352
70 #define IEEE80211_MAX_DATA_LEN (2300 + IEEE80211_CRC_LEN)
71
72 #define IEEE80211_MAX_MPDU_LEN_HT_BA 4095 /* 9.3.2.1 Format of Data frames; non-VHT non-DMG STA */
73 #define IEEE80211_MAX_MPDU_LEN_HT_3839 3839
74 #define IEEE80211_MAX_MPDU_LEN_VHT_3895 3895
75 #define IEEE80211_MAX_MPDU_LEN_VHT_7991 7991
76 #define IEEE80211_MAX_MPDU_LEN_VHT_11454 11454
77
78 #define IEEE80211_MAX_RTS_THRESHOLD 2346 /* net80211::IEEE80211_RTS_MAX */
79
80 #define IEEE80211_MIN_ACTION_SIZE 23 /* ? */
81
82 /* Wi-Fi Peer-to-Peer (P2P) Technical Specification */
83 #define IEEE80211_P2P_OPPPS_CTWINDOW_MASK 0x7f
84 #define IEEE80211_P2P_OPPPS_ENABLE_BIT BIT(7)
85
86 #define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007
87 #define IEEE80211_QOS_CTL_TID_MASK IEEE80211_QOS_TID
88 #define IEEE80211_QOS_CTL_EOSP 0x0010
89 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT 0x0080 /* 9.2.4.5.1, Table 9-6 QoS Control Field */
90
91 #define IEEE80211_RATE_SHORT_PREAMBLE BIT(0)
92
93 enum ieee80211_rate_control_changed_flags {
94 IEEE80211_RC_BW_CHANGED = BIT(0),
95 IEEE80211_RC_NSS_CHANGED = BIT(1),
96 IEEE80211_RC_SUPP_RATES_CHANGED = BIT(2),
97 IEEE80211_RC_SMPS_CHANGED = BIT(3),
98 };
99
100 #define IEEE80211_SCTL_FRAG IEEE80211_SEQ_FRAG_MASK
101 #define IEEE80211_SCTL_SEQ IEEE80211_SEQ_SEQ_MASK
102
103 #define IEEE80211_TKIP_ICV_LEN 4
104 #define IEEE80211_TKIP_IV_LEN 8 /* WEP + KID + EXT */
105
106 #define IEEE80211_VHT_EXT_NSS_BW_CAPABLE (1 << 13) /* assigned to tx_highest */
107
108 #define IEEE80211_VHT_MAX_AMPDU_1024K 7 /* 9.4.2.56.3 A-MPDU Parameters field, Table 9-163 */
109
110 #define IEEE80211_WEP_IV_LEN 3 /* net80211: IEEE80211_WEP_IVLEN */
111 #define IEEE80211_WEP_ICV_LEN 4
112
113 #define WLAN_AUTH_OPEN __LINE__ /* TODO FIXME brcmfmac */
114 #define WLAN_CAPABILITY_IBSS __LINE__ /* TODO FIXME no longer used? */
115 #define WLAN_CAPABILITY_SHORT_PREAMBLE __LINE__ /* TODO FIXME brcmfmac */
116 #define WLAN_CAPABILITY_SHORT_SLOT_TIME __LINE__ /* TODO FIXME brcmfmac */
117
118 enum wlan_ht_cap_sm_ps {
119 WLAN_HT_CAP_SM_PS_STATIC = 0,
120 WLAN_HT_CAP_SM_PS_DYNAMIC,
121 WLAN_HT_CAP_SM_PS_INVALID,
122 WLAN_HT_CAP_SM_PS_DISABLED,
123 };
124
125 #define WLAN_MAX_KEY_LEN 32 /* TODO FIXME brcmfmac */
126 #define WLAN_PMKID_LEN 16 /* TODO FIXME brcmfmac */
127
128 #define WLAN_KEY_LEN_WEP40 5
129 #define WLAN_KEY_LEN_WEP104 13
130 #define WLAN_KEY_LEN_CCMP 16
131 #define WLAN_KEY_LEN_GCMP_256 32
132
133 /* 9.4.2.56.3, Table 9-163 Subfields of the A-MPDU Parameters field */
134 enum ieee80211_min_mpdu_start_spacing {
135 IEEE80211_HT_MPDU_DENSITY_NONE = 0,
136 IEEE80211_HT_MPDU_DENSITY_4 = 5, /* 4us */
137 IEEE80211_HT_MPDU_DENSITY_8 = 6, /* 8us */
138 IEEE80211_HT_MPDU_DENSITY_16 = 7, /* 16us */
139 };
140
141 /* 9.4.2.57, Table 9-168, HT Operation element fields and subfields */
142 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080 /* B24.. */
143
144 #define IEEE80211_FCTL_FTYPE IEEE80211_FC0_TYPE_MASK
145 #define IEEE80211_FCTL_STYPE IEEE80211_FC0_SUBTYPE_MASK
146 #define IEEE80211_FCTL_ORDER (IEEE80211_FC1_ORDER << 8)
147 #define IEEE80211_FCTL_PROTECTED (IEEE80211_FC1_PROTECTED << 8)
148
149 #define IEEE80211_STYPE_ASSOC_REQ IEEE80211_FC0_SUBTYPE_ASSOC_REQ
150 #define IEEE80211_STYPE_REASSOC_REQ IEEE80211_FC0_SUBTYPE_REASSOC_REQ
151 #define IEEE80211_STYPE_PROBE_REQ IEEE80211_FC0_SUBTYPE_PROBE_REQ
152 #define IEEE80211_STYPE_DISASSOC IEEE80211_FC0_SUBTYPE_DISASSOC
153 #define IEEE80211_STYPE_AUTH IEEE80211_FC0_SUBTYPE_AUTH
154 #define IEEE80211_STYPE_DEAUTH IEEE80211_FC0_SUBTYPE_DEAUTH
155 #define IEEE80211_STYPE_ACTION IEEE80211_FC0_SUBTYPE_ACTION
156 #define IEEE80211_STYPE_QOS_DATA IEEE80211_FC0_SUBTYPE_QOS
157
158 #define IEEE80211_NUM_ACS 4 /* net8021::WME_NUM_AC */
159
160 #define IEEE80211_MAX_SSID_LEN 32 /* 9.4.2.2 SSID element, net80211: IEEE80211_NWID_LEN */
161
162
163 /* Figure 9-27, BAR Control field */
164 #define IEEE80211_BAR_CTRL_TID_INFO_MASK 0xf000
165 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT 12
166
167 #define IEEE80211_PPE_THRES_INFO_PPET_SIZE 1 /* TODO FIXME ax? */
168 #define IEEE80211_PPE_THRES_NSS_MASK 2 /* TODO FIXME ax? */
169 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS 3 /* TODO FIXME ax? */
170 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK 8 /* TODO FIXME ax? */
171 #define IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE 16 /* TODO FIXME ax? */
172
173 #define IEEE80211_HT_OP_MODE_PROTECTION 0x03 /* MASK */
174 #define IEEE80211_HT_OP_MODE_PROTECTION_NONE 0x00
175 #define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ 0x01
176 #define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED 0x02
177 #define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER 0x03
178
179
180 /* 9.6.13.1, Table 9-342 TDLS Action field values. */
181 enum ieee80211_tdls_action_code {
182 WLAN_TDLS_SETUP_REQUEST = 0,
183 WLAN_TDLS_SETUP_RESPONSE = 1,
184 WLAN_TDLS_SETUP_CONFIRM = 2,
185 WLAN_TDLS_TEARDOWN = 3,
186 WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
187 WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
188 WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
189 WLAN_TDLS_PEER_PSM_REQUEST = 7,
190 WLAN_TDLS_PEER_PSM_RESPONSE = 8,
191 WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
192 WLAN_TDLS_DISCOVERY_REQUEST = 10,
193 /* 11-255 reserved */
194 };
195
196 /* 9.4.2.27, Table 9-135. Extended Capabilities field. */
197 /* This is split up into octets CAPA1 = octet 1, ... */
198 #define WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING BIT(2 % 8)
199 #define WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT BIT(22 % 8)
200 #define WLAN_EXT_CAPA8_OPMODE_NOTIF BIT(62 % 8)
201 #define WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT BIT(5) /* XXX */
202 #define WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT BIT(7) /* XXX */
203
204
205 /* iwlwifi/mvm/utils:: for (ac = IEEE80211_AC_VO; ac <= IEEE80211_AC_VI; ac++) */
206 /* Would be so much easier if we'd define constants to the same. */
207 enum ieee80211_ac_numbers {
208 IEEE80211_AC_VO = 0, /* net80211::WME_AC_VO */
209 IEEE80211_AC_VI = 1, /* net80211::WME_AC_VI */
210 IEEE80211_AC_BE = 2, /* net80211::WME_AC_BE */
211 IEEE80211_AC_BK = 3, /* net80211::WME_AC_BK */
212 };
213
214 #define IEEE80211_MAX_QUEUES 16 /* Assume IEEE80211_NUM_TIDS for the moment. */
215
216 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO 1
217 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI 2
218 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK 4
219 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE 8
220 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL 0xf
221
222 struct vht_mcs {
223 uint16_t rx_mcs_map;
224 uint16_t rx_highest;
225 uint16_t tx_mcs_map;
226 uint16_t tx_highest;
227 };
228
229 struct ieee80211_vht_cap {
230 struct vht_mcs supp_mcs;;
231 __le32 vht_cap_info;
232 };
233
234 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
235
236 enum ieee80211_ht_max_ampdu_len {
237 IEEE80211_HT_MAX_AMPDU_64K
238 };
239
240 enum ieee80211_ampdu_mlme_action {
241 IEEE80211_AMPDU_RX_START,
242 IEEE80211_AMPDU_RX_STOP,
243 IEEE80211_AMPDU_TX_OPERATIONAL,
244 IEEE80211_AMPDU_TX_START,
245 IEEE80211_AMPDU_TX_START_DELAY_ADDBA,
246 IEEE80211_AMPDU_TX_START_IMMEDIATE,
247 IEEE80211_AMPDU_TX_STOP_CONT,
248 IEEE80211_AMPDU_TX_STOP_FLUSH,
249 IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
250 };
251
252 enum ieee80211_chanctx_switch_mode {
253 CHANCTX_SWMODE_REASSIGN_VIF,
254 CHANCTX_SWMODE_SWAP_CONTEXTS,
255 };
256
257 enum ieee80211_chanctx_change_flags {
258 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH = BIT(0),
259 IEEE80211_CHANCTX_CHANGE_RADAR = BIT(1),
260 IEEE80211_CHANCTX_CHANGE_RX_CHAINS = BIT(2),
261 IEEE80211_CHANCTX_CHANGE_WIDTH = BIT(3),
262 IEEE80211_CHANCTX_CHANGE_CHANNEL = BIT(4),
263 };
264
265 enum ieee80211_frame_release_type {
266 IEEE80211_FRAME_RELEASE_PSPOLL = 1,
267 IEEE80211_FRAME_RELEASE_UAPSD = 2,
268 };
269
270 enum ieee80211_p2p_attr_ids {
271 IEEE80211_P2P_ATTR_DEVICE_ID,
272 IEEE80211_P2P_ATTR_DEVICE_INFO,
273 IEEE80211_P2P_ATTR_GROUP_ID,
274 IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
275 IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
276 };
277
278 enum ieee80211_reconfig_type {
279 IEEE80211_RECONFIG_TYPE_RESTART,
280 IEEE80211_RECONFIG_TYPE_SUSPEND,
281 };
282
283 enum ieee80211_roc_type {
284 IEEE80211_ROC_TYPE_MGMT_TX,
285 IEEE80211_ROC_TYPE_NORMAL,
286 };
287
288 enum ieee80211_smps_mode {
289 IEEE80211_SMPS_OFF,
290 IEEE80211_SMPS_STATIC,
291 IEEE80211_SMPS_DYNAMIC,
292 IEEE80211_SMPS_AUTOMATIC,
293 IEEE80211_SMPS_NUM_MODES,
294 };
295
296 /* net80211::IEEE80211_S_* different but represents the state machine. */
297 /* Note: order here is important! */
298 enum ieee80211_sta_state {
299 IEEE80211_STA_NOTEXIST,
300 IEEE80211_STA_NONE,
301 IEEE80211_STA_AUTH,
302 IEEE80211_STA_ASSOC,
303 IEEE80211_STA_AUTHORIZED, /* 802.1x */
304 };
305
306 enum ieee80211_sta_rx_bw {
307 IEEE80211_STA_RX_BW_20,
308 IEEE80211_STA_RX_BW_40,
309 IEEE80211_STA_RX_BW_80,
310 IEEE80211_STA_RX_BW_160,
311 IEEE80211_STA_RX_BW_320,
312 };
313
314 enum ieee80211_tx_info_flags {
315 /* XXX TODO .. right shift numbers - not sure where that came from? */
316 IEEE80211_TX_CTL_AMPDU = BIT(0),
317 IEEE80211_TX_CTL_ASSIGN_SEQ = BIT(1),
318 IEEE80211_TX_CTL_NO_ACK = BIT(2),
319 IEEE80211_TX_CTL_SEND_AFTER_DTIM = BIT(3),
320 IEEE80211_TX_CTL_TX_OFFCHAN = BIT(4),
321 IEEE80211_TX_CTL_REQ_TX_STATUS = BIT(5),
322 IEEE80211_TX_STATUS_EOSP = BIT(6),
323 IEEE80211_TX_STAT_ACK = BIT(7),
324 IEEE80211_TX_STAT_AMPDU = BIT(8),
325 IEEE80211_TX_STAT_AMPDU_NO_BACK = BIT(9),
326 IEEE80211_TX_STAT_TX_FILTERED = BIT(10),
327 IEEE80211_TX_STAT_NOACK_TRANSMITTED = BIT(11),
328 IEEE80211_TX_CTL_FIRST_FRAGMENT = BIT(12),
329 IEEE80211_TX_INTFL_DONT_ENCRYPT = BIT(13),
330 IEEE80211_TX_CTL_NO_CCK_RATE = BIT(14),
331 IEEE80211_TX_CTL_INJECTED = BIT(15),
332 };
333
334 enum ieee80211_tx_control_flags {
335 /* XXX TODO .. right shift numbers */
336 IEEE80211_TX_CTRL_PORT_CTRL_PROTO = BIT(0),
337 };
338
339 enum ieee80211_tx_rate_flags {
340 /* XXX TODO .. right shift numbers */
341 IEEE80211_TX_RC_40_MHZ_WIDTH = BIT(0),
342 IEEE80211_TX_RC_80_MHZ_WIDTH = BIT(1),
343 IEEE80211_TX_RC_160_MHZ_WIDTH = BIT(2),
344 IEEE80211_TX_RC_GREEN_FIELD = BIT(3),
345 IEEE80211_TX_RC_MCS = BIT(4),
346 IEEE80211_TX_RC_SHORT_GI = BIT(5),
347 IEEE80211_TX_RC_VHT_MCS = BIT(6),
348 IEEE80211_TX_RC_USE_SHORT_PREAMBLE = BIT(7),
349 };
350
351 #define IEEE80211_HT_CTL_LEN 4
352
353 struct ieee80211_hdr { /* net80211::ieee80211_frame */
354 __le16 frame_control;
355 __le16 duration_id;
356 uint8_t addr1[ETH_ALEN];
357 uint8_t addr2[ETH_ALEN];
358 uint8_t addr3[ETH_ALEN];
359 __le16 seq_ctrl;
360 uint8_t addr4[ETH_ALEN];
361 };
362
363 struct ieee80211_vendor_ie {
364 };
365
366 /* 9.3.3.2 Format of Management frames */
367 struct ieee80211_mgmt {
368 __le16 frame_control;
369 __le16 duration_id;
370 uint8_t da[ETH_ALEN];
371 uint8_t sa[ETH_ALEN];
372 uint8_t bssid[ETH_ALEN];
373 __le16 seq_ctrl;
374 union {
375 /* 9.3.3.3 Beacon frame format */
376 struct {
377 uint64_t timestamp;
378 uint16_t beacon_int;
379 uint16_t capab_info;
380 uint8_t variable[0];
381 } beacon;
382 /* 9.3.3.10 Probe Request frame format */
383 struct {
384 uint8_t variable[0];
385 } probe_req;
386 /* 9.3.3.11 Probe Response frame format */
387 struct {
388 uint64_t timestamp;
389 uint16_t beacon_int;
390 uint16_t capab_info;
391 uint8_t variable[0];
392 } probe_resp;
393 /* 9.3.3.14 Action frame format */
394 struct {
395 /* 9.4.1.11 Action field */
396 uint8_t category;
397 /* 9.6.8 Public Action details */
398 union {
399 /* 9.6.8.33 Fine Timing Measurement frame format */
400 struct {
401 uint8_t dialog_token;
402 uint8_t follow_up;
403 uint8_t tod[6];
404 uint8_t toa[6];
405 uint16_t tod_error;
406 uint16_t toa_error;
407 uint8_t variable[0];
408 } ftm;
409 } u;
410 } action;
411 } u;
412 };
413
414 #define MHZ_TO_KHZ(_f) ((_f) * 1000)
415 #define DBI_TO_MBI(_g) ((_g) * 100)
416 #define MBI_TO_DBI(_x) ((_x) / 100)
417 #define DBM_TO_MBM(_g) ((_g) * 100)
418 #define MBM_TO_DBM(_x) ((_x) / 100)
419
420 #define IEEE80211_SEQ_TO_SN(_seqn) (((_seqn) & IEEE80211_SEQ_SEQ_MASK) >> \
421 IEEE80211_SEQ_SEQ_SHIFT)
422
423 /* Time unit (TU) to .. See net80211: IEEE80211_DUR_TU */
424 #define TU_TO_JIFFIES(_tu) (usecs_to_jiffies(_tu) * 1024)
425 #define TU_TO_EXP_TIME(_tu) (jiffies + TU_TO_JIFFIES(_tu))
426
427 /* 9.4.2.21.1, Table 9-82. */
428 #define IEEE80211_SPCT_MSR_RPRT_TYPE_LCI 8
429 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CIVIC 11
430
431 /* 9.4.2.1, Table 9-77. Element IDs. */
432 enum ieee80211_eid {
433 WLAN_EID_SSID = 0,
434 WLAN_EID_SUPP_RATES = 1,
435 WLAN_EID_DS_PARAMS = 3,
436 WLAN_EID_TIM = 5,
437 WLAN_EID_COUNTRY = 7, /* IEEE80211_ELEMID_COUNTRY */
438 WLAN_EID_REQUEST = 10,
439 WLAN_EID_CHANNEL_SWITCH = 37,
440 WLAN_EID_MEASURE_REPORT = 39,
441 WLAN_EID_RSN = 48, /* IEEE80211_ELEMID_RSN */
442 WLAN_EID_EXT_SUPP_RATES = 50,
443 WLAN_EID_EXT_CHANSWITCH_ANN = 60,
444 WLAN_EID_EXT_CAPABILITY = 127,
445 WLAN_EID_VENDOR_SPECIFIC = 221,
446 };
447
448 /* 9.4.1.7, Table 9-45. Reason codes. */
449 enum ieee80211_reason_code {
450 /* reserved = 0, */
451 WLAN_REASON_UNSPECIFIED = 1,
452 WLAN_REASON_DEAUTH_LEAVING = 3, /* LEAVING_NETWORK_DEAUTH */
453 WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE = 25,
454 WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED = 26,
455 };
456
457 /* 9.4.1.9, Table 9-46. Status codes. */
458 enum ieee80211_status_code {
459 WLAN_STATUS_SUCCESS = 0,
460 WLAN_STATUS_AUTH_TIMEOUT = 16, /* REJECTED_SEQUENCE_TIMEOUT */
461 };
462
463 /* net80211: IEEE80211_IS_CTL() */
464 static __inline bool
ieee80211_is_ctl(__le16 fc)465 ieee80211_is_ctl(__le16 fc)
466 {
467 __le16 v;
468
469 fc &= htole16(IEEE80211_FC0_TYPE_MASK);
470 v = htole16(IEEE80211_FC0_TYPE_CTL);
471
472 return (fc == v);
473 }
474
475 /* net80211: IEEE80211_IS_DATA() */
476 static __inline bool
ieee80211_is_data(__le16 fc)477 ieee80211_is_data(__le16 fc)
478 {
479 __le16 v;
480
481 fc &= htole16(IEEE80211_FC0_TYPE_MASK);
482 v = htole16(IEEE80211_FC0_TYPE_DATA);
483
484 return (fc == v);
485 }
486
487 /* net80211: IEEE80211_IS_QOSDATA() */
488 static __inline bool
ieee80211_is_data_qos(__le16 fc)489 ieee80211_is_data_qos(__le16 fc)
490 {
491 __le16 v;
492
493 fc &= htole16(IEEE80211_FC0_SUBTYPE_QOS | IEEE80211_FC0_TYPE_MASK |
494 IEEE80211_FC0_VERSION_MASK);
495 v = htole16(IEEE80211_FC0_QOSDATA);
496
497 return (fc == v);
498 }
499
500 /* net80211: IEEE80211_IS_MGMT() */
501 static __inline bool
ieee80211_is_mgmt(__le16 fc)502 ieee80211_is_mgmt(__le16 fc)
503 {
504 __le16 v;
505
506 fc &= htole16(IEEE80211_FC0_TYPE_MASK);
507 v = htole16(IEEE80211_FC0_TYPE_MGT);
508
509 return (fc == v);
510 }
511
512
513 /* Derived from net80211::ieee80211_anyhdrsize. */
514 static __inline unsigned int
ieee80211_hdrlen(__le16 fc)515 ieee80211_hdrlen(__le16 fc)
516 {
517 unsigned int size;
518
519 if (ieee80211_is_ctl(fc)) {
520 switch (fc & htole16(IEEE80211_FC0_SUBTYPE_MASK)) {
521 case htole16(IEEE80211_FC0_SUBTYPE_CTS):
522 case htole16(IEEE80211_FC0_SUBTYPE_ACK):
523 return sizeof(struct ieee80211_frame_ack);
524 case htole16(IEEE80211_FC0_SUBTYPE_BAR):
525 return sizeof(struct ieee80211_frame_bar);
526 }
527 return (sizeof(struct ieee80211_frame_min));
528 }
529
530 size = sizeof(struct ieee80211_frame);
531 if (ieee80211_is_data(fc)) {
532 if ((fc & htole16(IEEE80211_FC1_DIR_MASK << 8)) ==
533 htole16(IEEE80211_FC1_DIR_DSTODS << 8))
534 size += IEEE80211_ADDR_LEN;
535 if ((fc & htole16(IEEE80211_FC0_SUBTYPE_QOS |
536 IEEE80211_FC0_TYPE_MASK)) ==
537 htole16(IEEE80211_FC0_SUBTYPE_QOS |
538 IEEE80211_FC0_TYPE_DATA))
539 size += sizeof(uint16_t);
540 }
541
542 if (ieee80211_is_mgmt(fc)) {
543 #ifdef __notyet__
544 printf("XXX-BZ %s: TODO? fc %#04x size %u\n",
545 __func__, fc, size);
546 #endif
547 ;
548 }
549
550 return (size);
551 }
552
553 #endif /* _LINUXKPI_LINUX_IEEE80211_H */
554